Suspicious LSASS Access Via MalSecLogon

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About the rule

Rule Type

Standard

Rule Description

Detects suspicious access to LSASS handle via a call trace to "seclogon.dll" with a suspicious access right.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "sa_process_accessed" AND PROCESSNAME endswith "\lsass.exe" AND PARENTPROCESSNAME endswith "\svchost.exe" AND ACCESSRIGHT = "0x14c0" AND CALLTRACE contains "seclogon.dll" select Action1.HOSTNAME,Action1.MESSAGE,Action1.PROCESSNAME,Action1.PARENTPROCESSNAME,Action1.SRCUSER,Action1.TARGETUSER,Action1.CALLTRACE

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Samir Bousseaden (original elastic rule), Nasreddine Bencherchali (Nextron Systems)